Bobbin frame for looms



Dec,3,1924.

1,521,351 J. B. BOLTON BOBBIN FRAME FOR LOOMS Filed Sept. 21, 1921 .COBPORATION OF lENNSYL'l AIfi'Ei -r.

JOHN ZEROTVILEY SCJ'NS, INCURFORATED, 0F

BOBBIE FRAME ZOR LGGILS.

Application filed September To (17X whom if may coi'zcm'n Be it known that l, JUIIN ll. lhiLrii'x, a citizen of the United States. residing in the city of Phihidelphiu, State of Pennsylvania. have invented certain new zlilll llfiii lll linprovenicnts in Bobbin Frames for Looms, of which the following is n specification, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to means for detnchnbly supporting the rotatable bobbins on which the yarn wound. for use in the loom, these means being commonly called a bobbin Era-inc which, in addition to providing bearings for rotntublv supporting the bobbin comprise tubular eyes for guiding the yarn to the loom, the bobbin frame itself being detachubly supported on the loom.

My invention has for its objects to reduce the cost of construction of the bobbin and to strengthen it, by eliminating the spring-actuated stub shnl't at one. or both bored-out ends of the bobbin, as it is now commonly made, and to supply a diilerent mechanical element, to perform its tunetion, but instead of making such functional substitute nnelementa part of the bobbin, as before, I leave the bobbin solid, Without end borings and With fixed bearing shafts, and construct the resilient bearing therefor as an. element forming port of the bobbin frame, and of such cl :iracter us to strengthen the latter and make it more durable, and the insertion and removal of the bobbin easier to manipulate; and in other respects increase the eflicienc of the bottom "frame and its bobbin, as in operative unit. i

To these ends my invention consists of the combinoti n oi elements hereinafter desei'ilrsd, the novel and characteristic features being is stated in the appended claim.

in the drawings illustrating the invention 1 is n side elevation from the front of device, partly broken away in the centre.

Fin. 2 is a sectional View thereof. Fig. 8 is 2L left hand end view of the device of Fig. 1, looking in the direction of the arrow line 33. Fig. 4 is a left hand end view of the device of Fig. 1 looking in the direction of the arrow line ls-41, which is the opposite of that of the line 3-3. Fig. 5 is a right hand end View of the device of 1 looking: in the direction of the arrow line 5-5. The

21, 1921. Serial m.

bobbin or spool is indicated at l, usual button or e i v ezn-h a stub shaft 3 consisti the n jectin or a comparatively long and I 3 driven through'the end plethbody portion 1 of the spool. "lb ing ends serve as herding shnirs spool, and by irhirh the latter is rotatebly.

The bobbin. frame, on is rotatably supported, cons wood bar s, of slightly greaterthe bobbin, on the upper mounted, zit each end, it tint bur s irin to support bobbin vertimiliv and main tain it in a horizontal plane. so that it will run true and also be maintained hr its stub shafts 3 in a, bearing there) r niou on each end of the bobbin "frame hcreiimttcr described.

in both the old art and in the new i proved by me, the bearing member consis primarily, of a motel piste hnvi l flange 6 and, at right ii cs t ticully disposed body portion, them of a Width approx .etelv equal Width of the wooden base l 4 them secured to the base on body at, by screws or The vertical body portion given Ollbfl'iiltl}; inclined upper end, terrninzitin; 5": or end niece F. 7'

ectthe supooricd shown in lowing flutsprint to have a limited This spring is seen as by screws to frame bar 4;, elined bond, as a. Ward bend to f hook 8 The function ti nlici, elem; 7 is primarily to support means operable to de-tachably support the bobbin in the frame. 011 the outer lower face of the frame bodv 4 is mounted, as usual, the row of tubular eyes 9, through which the yarn threads on the bobbin are led to the appropriate parts of the loom, as usual.

These bobbins subj usage, in the rill. refilling with yarn,

therein, aver end.

' bobbin :frame for usefin the loom, and the boring out of the end of the bobbin to mount therein the resiliently movable shaft 15 and its spring adjunctsas has been the practice heretofore materially weakened the bobbin at that point, causing frequent breaking,

.To provide. a resiliently movable bearing 1'4 narrower than the slot 7? so that the:

which made expense, and this, in addition to the initial cost of construction My invention overcomes .both these sources of expense, and by the following means, namely: I dispense Withboring out one end of thebobbin, and with the resilient stubv shaft, its spring and adjuncts,-and I construct the bobbin with fixed stub shafts 3, at both ends. I dispense .Wltll the in- :wardly inclined bend or recessed bearing-lip 1O, which is part of the fixed element 6-7,-

and substitute a spring-bearing 14 for the bobbin shaft instead of suchfixed bearing 10; but I retain. all the rest of the member 1 including the recess 7 therein to allow the spring bearing 14.to pass throughit with al guided andlimited play therein.

,forthe bobbin shaft, I provide a steel spring spring 14 may move into and from the slot.

One end Of'Wl'llCh is secured. to the end of the bobbin frame, between it and steel bear- 'ing frame 7,'preferab'ly, as shown on the left hand side of. Figs. 1 and 2, and for this purpose I prolong the slot/ 7 in. the bend 7* to extend slightly into the vertical body portion 7 of the bearing member, to -'give a .freer. movement of the bearin'g spring 14; though this extension of. the slot 7? is not necessary if the steel spring-14 is passed downward through the slot 7 and its loiver end fasbearing body 7 tened to the bobbin frame outside the steel T The resilient bearing spring 14 is supported for a portion of its length by the ---body ort-ion 7 of the bearing member and it is ightly inclined inwardly towards and ending in a vertical portion 14 which is appropriately. apertured tosupply a. bearing for the stub shaft 3 topass freely through it and be rotatably supported therein. The extreme end of the resilient bearing spring 14 is bent to form an operating finger piece -14".- This bearing spring may tage ofease of manipulation, the avoidance of recessing the endof the bobbin and the expense of supplying a resilient stub shaft thereof is entirely saved,

bobbin, of course, much stronger.

claim:'

The combination of, a bobbin having a stub shaft projecting from one end thereof, a frame bar having means on one end portion thereof to rotatably support .one end of Having thus described my invention, I

the bobbin, a bearing member projectingand the solid, 7

from other end-portion of the frame bar and having slot therein, a spring 1projecting fixedly from the frame bar and ia-ving .an

aperture in its free end portion into which the stub shaft extends, said bearing member supporting said spring for aportion of its length and said spring. being narrower than sa d slot and being movable into the same to move it from the stub shaft to free the bobbin.

In testimony whereof I have hereunto affixed my signature this 12th day of Sep-- tember, 1921.

JOHN'B. BOLTON. v Witnesses: 

